Wixroyd Tapered Shaft Hubs 38400 - 38420
What is...
Applications
By using Tapered Shaft Hubs, Sprocket Wheels, Gear Wheels, Belt Pulleys, Cams, Levers etc. can easily and efficiently be installed.
Tapered Shaft Hubs are available with or without lock nuts.
Features
No axial shift
Upon mounting, if the Hub sits close to a collar, an axial offset is not possible. In this case, only 60% of the force mentioned in the charts can be transmitted.
Two Tapered Shaft Hubs in one hub
When using this method, the Tapered Shaft Hub which is tightened, first transmits 100% of the forces mentioned in the charts. When tightening the second Tapered Shaft Hub, an axial offset of the hub is not possible. Therefore, this Tapered Shaft Hub is only able to transmit 60% of the forces.
Installation
Assembly
The contact surface of the Shaft and the Hub must be free from oil and dirt.
1. Rotate nut to the left until the inner part protudes approx. 3-5mm over the outer.
2. Install Tapered Shaft hub in the hub hole.
3. Slightly tighten the nut when located in the desired position. Compensate the axial offset thus produced with a soft-face mallet. Tighten the Tapered Shaft Hub.
Disassembly
1. Release Tapered Shaft Hub by turnng the nut to the left until the inner part protrudes approx. 3-5mm over the outer part.
Technical Specs
Simultaneous exposure to different forces
If torque (Mt) and axial forces (Fa) are transmitted simultaneously, a resultant total torque (Mr) is obtained which must be less than or equal to the maximum torque (Mmax) indicated in the charts. (Mr ≤ Mmax)
A maximum torque (Mmax) of 520 Nm is transmitted by the Tapered Shaft Hub 38420.W0125. The forces can be transmitted because Mr(325 Nm) is less than Mmax
Outside diameter of Hub and inside diameter to hollow Shaft
When fitting Tapered Shaft Hubs, the outside diameter of the hub and the inside diameter of the hollow shaft have to be considered.
Smallest possible outside diameter of hub
Largest possible inside diameter of hollow shaft
Material Chart
Material
| St 37-2 Ust 372 | St 50-2 | Ck 35 | Ck 45 | 11sMn 30 11SMn Pb 30 | GG 15 | GG 20 | GG-25 | GGG-40 | AIMg 3 F 25 |
Diameter
16 < d1 ≤ 40
40 < d1 ≤ 100
Minimum strength values in N/mm2
| Re | Re | Re | Re | Re | Rp 0,1 | Rp 0.1 | Rp 0,1 | Rp 0,2 | Re |
| 225 | 285 | 320 | 380 | 375 | 90 | 130 | 165 | 250 | 180 |
| 205 | 265 | 260 | 300 | 245 | 90 | 130 | 165 | 250 | 180 |
